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Qualcomm wants to replace eSIMs with iSIMs, has the first certified SoC

arstechnica.com

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Re: Qualcomm wants to replace eSIMs with iSIMs, has the first certified SoC

#71

Earlier quoted context omitted.

> eSIMs are a massive win when travelling, too. Instantly activate a data plan at cheap local rates in whatever country your travelling to, without having to first get your hands on a physical SIM... For many years I've owned dual-SIM phones and on many occasions have bought a local SIM a the airport or corner store when travelling for a week or more to countires outside my roaming allowance. This is almost always ch…

I was really thinking of being able to grab an eSIM directly for a local network, rather than one of the "global eSIM providers". You'd just grab your eSIM over WiFi when you land rather than seeking out a physical SIM from an airport vendor. Obviously it's not the reality that these are easily available in all destinations, yet, but should become more so over time.

There's frankly no reason for a local network to make it easy for foreigners to sign up when they can instead get paid 10x as much in roaming fees if the foreigner stays on their home network instead.

Re: Qualcomm wants to replace eSIMs with iSIMs, has the first certified SoC

#72

Can anyone explain why eSIM was the stopgap solution and we didn't go straight from physical SIM to iSIM? What special requirements does a SIM card have that it was easier to put it on a seperate chip? Now that we've moved to iSIM, does this remove the artificial limitation on the number of SIMs a phone can support? Can I buy a phone in 2030 and load it up with 50 different PAYG SIM cards?

My guess is that the French SIM companies put all kind of artificial limitations on esim so they could keep their marketshare and continue earning money on licensing and patents

It's not only french companies producing them and the entities who are involved in pushing SIM replacements aren't as interested in mundane things such as marketshare, money etc. as you might think.

Don't forget this one for example: https://theintercept.com/2015/02/19/great-sim-heist/

I don't think the french abuse their SIM-powerposition, otherwise they would not force states like Palestine into using weaker encryption and such.

Re: Qualcomm wants to replace eSIMs with iSIMs, has the first certified SoC

#74

Earlier quoted context omitted.

At least on the iPhone you can add many and activate two simultaneously. Most phones weren’t dual-sim!

Dual-SIM phones were the hot shit for years when phones were beginning to take off. I remember some weird adapters that cycled through SIMs when the phone was restarted and all kinds of other hacks.

You don't even need Dual-SIM phones, contemporary SIM can contain various numbers/administrations. Both with and without hackery involved. It's just that the carriers don't want it / block it. This is also why many of them outright refuse to sell phones with dual SIM capability.

Re: Qualcomm wants to replace eSIMs with iSIMs, has the first certified SoC

#75

Earlier quoted context omitted.

SIM cards were never swappable for me. They were locked to a phone. Changing to a new handset meant going to the carriers store or having them ship me one. I welcome the ease of portability that eSIM brings.

This feels like an American perspective. In Europe (and Asia too?), sim-swapping is pretty seamless, and relatively common.

In France for example SIM cards where a thing since cellphones exist, however I've lived in Japan and US in the 2000s and in both countries there was no SIM, you had to go through your carrier to change phones and they would setup your phone in the shop.

Re: Qualcomm wants to replace eSIMs with iSIMs, has the first certified SoC

#76

Wasn't one of the benefits of a smart card model was having a totally isolated chip that could run minimal software and provide a limited surface for attack? If you add everything to the same chip then doesn't this reduce the advantages of having that separate smart card (together with it's anti-tampering design)? We're also supposed to trust Qualcomm that this is secure... Sounds totally legit. SIM cards aren't perf…

I haven't worked on iSIM myself, but I have colleagues that work on integrating iSIM onto an SoC.

The procedure around integrating an iSIM into an SoC is ridiculously strict. The integration and simulation has to happen on a workstation in a special room, not connected to the rest of the network, with camera surveillance, etc.

> We're also supposed to trust Qualcomm that this is secure

I don't know if Qualcomm can do things differently. I don't know if they can design the iSIM themselves instead of integrating from a trusted third party. But I doubt that the security requirement is any less strict. Telecom operators seem to be extremely paranoid about this stuff.

Essentially, it seems like it's not that much different from eSIM, you're just putting a similar kind of trusted module on the SoC instead of on the PCB.

> together with it's anti-tampering design

I'd be very surprised if iSIM and the whole Qualcomm SoC isn't designed with anti-tampering mechanisms. Seems like anti-tampering is becoming a general requirement for SoCs (with upgradable firmware and root-of-trust) being designed now.

Re: Qualcomm wants to replace eSIMs with iSIMs, has the first certified SoC

#77
post #70

Earlier quoted context omitted.

How do eSIMs work for identity verification? The last several times I've bought SIMs outside Europe, I've had to show my passport.

Outside Europe? Identity verification is mandatory in the EU and afaik there are very few states that haven't implemented it in local law (the netherlands and croatia, I think).

I haven't bought one in Europe, since I have both registered and anonymous Danish SIMs, and an anonymous British SIM. (They can be bought anonymously in both countries.)

Are you sure it's EU law? I can't find anything on it.

Re: Qualcomm wants to replace eSIMs with iSIMs, has the first certified SoC

#79
post #30

Can anyone explain why eSIM was the stopgap solution and we didn't go straight from physical SIM to iSIM? What special requirements does a SIM card have that it was easier to put it on a seperate chip? Now that we've moved to iSIM, does this remove the artificial limitation on the number of SIMs a phone can support? Can I buy a phone in 2030 and load it up with 50 different PAYG SIM cards?

Security. SIMs are smartcards - separate systems storing cryptographic material and performing trusted operations. A TPM that can be plugged and unplugged, basically, using the same standards as a chip-and-pin credit card. Equivalent keystores haven't been available built in to cell phones until the last few years.

TrustZone and Secure Element have been available for quite some time now. I think this problem is more because carriers/users don't want to give up control to software companies than it's about lacking hardware.

Re: Qualcomm wants to replace eSIMs with iSIMs, has the first certified SoC

#80
Oh well I guess I should plan on stopping the usage of smartphones in a few years and start calling my congressman and lobbying to have laws that allow me to function in society without a smartphone.

I hated eSIMs but at least I could solder them off like bluetooth,gps or even wifi sometimes for some devices like the kindle paper (I just upload books to it with USB).

I know there is market demand for laptops with hardware key switches and that are pro-privacy but how big or competitive is it?

I want to make disconnected versions of products. From TVs to appliances, home automation, camera systems and smart phones (of course not on my own lol). I call this vision of products "smarter technology", because my goal is not to reduce functionality or features but to engineer products in a smarter way that does not require internet connectivity (but in some cases a hardware switch can enable network/radio connectivity. I am desparately searching for products like this these days.

An IP camera that is effectively PoE powered but acts like a webcam for your desktop when you set it up that way or with a mini-dvr that will stream it locally via wifi/ethernet or optionally through a paid cloud subscription (profit $$$). I want that.

A car with a hardware button to turn off connectivity features but also has all the cool modern car features that don't need network connectivity and a fully manual driving mode with optionally replacable batteries (replace them in seconds instead of wait in a queue and charge after an hour)

A TV where you can remove the builtin computer and it can still display hdmi,displayport,etc... and you can reprogram it as you wish.

A phone that can only make calls and stream display input via BLE or other radio from an optional computer that it can physically get attached to, but you can also take this optional computer with you and connect it to a wireless dock to use it as a desktop or laptop or to interface/manage your home automation and security.

I would prefer to donate to someone else to get them to do all this but if the market is strong enough, I don't mind making a lot of money doing it myself either.

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